<div class="apiDetail">
    <div>
        <h2><span>String / Function(treeId, treeNode)</span><span class="path">setting.async.</span>url</h2>
        <h3>Overview<span class="h3_info">[ depends on <span
                class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
        <div class="desc">
            <p></p>
            <div class="longdesc">
                <p>The URL to which the ajax request is sent. It is valid when <span class="highlight_red">[setting.async.enable = true]</span>
                </p>
                <p>Default: ""</p>
            </div>
        </div>
        <h3>String Format</h3>
        <div class="desc">
            <p>A url string(e.g. "http://www.domain.com/cgi-bin/my-script.cgi"). Note: please check that the url can be
                loaded with a browser</p>
            <p class="highlight_red">Url can also take parameters, please note that they need to be urlencoded.</p>
        </div>
        <h3>Function Parameter Descriptions</h3>
        <div class="desc">
            <h4><b>treeId</b><span>String</span></h4>
            <p>zTree unique identifier: <b class="highlight_red">treeId</b>.</p>
            <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>
            <p>Parent node's JSON data object</p>
            <p class="highlight_red">When asynchronously loading the root, the treeNode = null</p>
            <h4 class="topLine"><b>Return </b><span>String</span></h4>
            <p>Return value is same as 'String Format'</p>
        </div>
        <h3>Examples of setting & function</h3>
        <h4>1. set ajax url is "nodes.php"</h4>
        <pre xmlns=""><code>var setting = {
	async: {
		enable: true,
		url: "nodes.php",
		autoParam: ["id", "name"]
	}
};
......</code></pre>
        <h4>2. set ajax url is "function"</h4>
        <pre xmlns=""><code>function getAsyncUrl(treeId, treeNode) {
    return treeNode.isParent ? "nodes1.php" : "nodes2.php";
};
var setting = {
	async: {
		enable: true,
		url: getAsyncUrl,
		autoParam: ["id", "name"]
	}
};
......</code></pre>
    </div>
</div>